UK iPhone. Bought from O2 running firmware 1.1.3 on an 18 month contract with O2
Updated to 1.1,4 through iTunes still clean at this stage.
Jailbroke, unlocked and activated with Liberty+.
Installed my favorites Apps
Used winpwn, and DID NOT restore back to clean 1.1/4 INSTALATION first,
Put in recovery mode, with a little help from Ziphone not through choice it was the only thing that worked ; - (
Run Winpwn everything A - OK
Now I've got an:
Iphone thatís pawned OK. Put back in recovery and created custom .ipsw file.
Installed custom ipsw file installed all my favourate apps
Including bootnueter was surprised to see that my iPhone was still unlocked with 3.9FB
Run bootnueter quite a few times unsuccessfully, the only difference I'd made when it worked was I had installed SBS Subsystem on my iPhone.
Now got WinPawned iphone with custom boot images
Jailbroke, Unlocked and activated back to 4.6 Bootloader = Nuetered.

UK
Used winpwn, and DID NOT restore back to clean 1.1/4 INSTALATION first,

I

Its my experience in jailbreaking every version of firmware since 1.1.2 that I was not successful unless I restored to a clean phone in iTunes first. Several restores I got lazy and tried to restore as my old phone and always ended up either in failure or with a very buggy phone.

Always restore in iTunes as a NEW PHONE before any jailbreak. I have had clean sailing everytime by doing this. You may lose your settings, but i used WinSCP to copy the db files out of my phone first. You can always resync your iTunes stuff. once you restore and PWN or whatever (ziphone, iLiberty etc...) you can copy the db files back to your phone.

i dont see the point of this all it does that is different then Ziphone is that it has the iPwned picture when u turn it on

You are missing the point completely of winpwn. All it does is modifies the phone to accept an unsigned files. You can then create your own restore file with the applications you want preinstalled and just restore via itunes as you normally do. You don't have to pwn the phone again to change to a different customer restore. Just make it and run restore in itunes. You also have the option of setting up custom boot images.

Happy to report a successful winpwnage of my phone. I must say it is working awesome no glitches whatsoever. I was a bit surprised that I had to neuter/unlock my phone for service. I suppose I could've ssh'd the oem lockdownd file but once I seen bootneuter available in cydia I tried that first. My phone seems to work much better now. HUGE THANKS to all involved and especially cmw for his unbelievable work in porting it to windows. Keep up the awesome work guys/gals.

GoIrish

Edit: Just tested ssh'ing and replacing the lockdownd file with the original 1.1.4 lockdownd. The firmware does indeed activate with iTunes and no need for bootneuter if you have legit AT&T. It appears winpwn activates the firmware whether you tell it to or not.